Genetic Mutations
spontaneous change in the gene frequency that takes place in a population and occurs at a low rate
What is mutation
Fossils are usually found in this type of soil
What is sedimentary?
In early stages of development, pigs, fish and these two-legged mammals share developmental traits such as spines, tails, eyes, and gill slits.
What are humans?
Passing of genetic physical or mental characteristics from one generation to the next
What is Heredity
Mutations occur in this acronym for Deoxyribonucleic acid
What is DNA
These small bloodsuckers are examples of fossils found in inclusion fossils, or amber
What are mosquitos?
Humans lose this feature common in fish, pigs, and dogs in later stages of embryonic development.
What is a tail?
He originally coined the theory of evolution
Who is Charles Darwin?
Having an extra set of chromosome 21 results in this type of genetic mutation.
What is Down's Syndrome
A fossil of a shell found in a desert is indicative that the climate was once this type of environment.
What is aquatic?
A chicken egg is in this form of development when it is first laid
What is embryonic?
Entire complex of genes inherited from both parents
What is genotype?
An inherited disease in which the body produces a very thick, sticky mucus
What is cystic fibrosis
This type of fossil can be left by a footprint or other "signs" of an organisms existence, but is not in the form of bones
What is a trace fossil?
Most fish and lizards stay in this type of embryonic "shell", but many are also born alive outside of it.
What is an egg?
Any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation).
What is Variation?
Albinism is a lack of this
what is melanin?
Scientists that study fossils are commonly known by this name.
What are palentologists?
After fertilization of an embryo a single cell forms and is called this.
What is a zygote?
The island where Darwin first formed his theories of evolution.
What are the Galapagos?